A personal propulsion device, including a platform configured to support a passenger's body; and at least one fluid discharge nozzle coupled to the platform and angled with respect to the platform, where the angle defined between the nozzle and the platform is between approximately 95° and 120°; where the personal propulsion device is configured to receive pressurized fluid from a remote pressurized fluid source, and where the personal propulsion device is configured to achieve flight.

A controller receives a signal indicating an operating amount and an operating direction of a steering member. When the operating amount of the steering member is greater than or equal to a steering threshold, the controller causes right and left propulsion devices to generate thrusts oriented in opposite directions in a back-and-forth direction such that a vessel body is turned in a corresponding direction to the operating direction of the steering member.

A marine catamaran craft, comprising at least one forward hydrofoil fixed to each of the catamaran hulls and at least one rear hydrofoil in which: At least one forward hydrofoil is arranged for shallowly submerged operation At least one rear hydrofoil is arranged for shallowly submerged operation at low speeds and for planing operation at higher speeds A rear part of each of the catamaran hulls remains wetted at all speeds.

The present invention provides lightweight fluid-jet thrust pack which provides three rotational axes and reduced restriction of fluid flow to the output nozzles. A first rotational axis is provided by a first rotatable coupling that is concentric with a coupler for a hose supplying pressurized fluid. The top of the first coupling has a splitter which directs incoming fluid into two splayed stub supply pipes. A preformed, reinforced rubber hose connects each stub supply pipe to one of a pair of coaxial rotatable couplings at opposite ends of a tiltable cross arm assembly that is pivotally secured to tower support bracket that is secured to the first rotatable coupling. An outward rotatable portion of each of the coaxial rotatable couplings is equipped with one boot-mounting platform and a downward-projecting jet nozzle that is in communication with the stub receiver pipe of the same rotatable coupling.

The invention relates to a fluid outlet interface for a personal watercraft, so that the latter can collect and divert a very small portion of the fluid pressurized by said vehicle and thus create a sufficient Venturi effect to drive the emptying of the bilge of said vehicle. The invention also relates to a personal watercraft, or more generally any floating device delivering a pressurized fluid, comprising such an interface.

A water-propelled or water-powered unmanned aerial vehicle including a base configured to carry a payload, and at least one nozzle attached thereto. The at least one nozzle is configured to selectively receive pressurized fluid from a source located remotely from the vehicle. The vehicle includes a control system configured to alter or otherwise selectively dictate the flow of fluid through the at least one nozzle and/or the orientation of the at least one nozzle with respect to the base in response to a received control signal for providing controlled unmanned vehicle flight.

The invention relates to a device for propelling a passenger, comprising a body arranged to receive said passenger and cooperating with a fuel-fed thrust unit. The arrangement of such a device enables great freedom of movement in the air. More specifically, the thrust unit comprises at least one thrust sub-unit, each advantageously comprising at least two thrusters and secondary course-correction and/attitude-correction thrusters.

A propulsion device has a body including a platform and a thrust unit, the thrust unit including a first thermal thruster configured to eject a gaseous flow along an axis normal to the platform, the body of the propulsion device including support means of the thrust unit, wherein said thrust unit includes a first electrical secondary thruster configured to correct the attitude of the propulsion device.

A controller receives a signal indicating an operating amount and an operating direction of a steering member. When the operating amount of the steering member is greater than or equal to a steering threshold, the controller causes right and left propulsion devices to generate thrusts oriented in opposite directions in a back-and-forth direction such that a vessel body is turned in a corresponding direction to the operating direction of the steering member.

The invention relates to a propulsion device comprising a platform that is arranged so as to accommodate a passenger and cooperates with a thrust unit comprising a main nozzle, advantageously oriented from the bow to the stern of the device, and two secondary nozzles that are lateral and are positioned essentially at the bow of the propulsion device. The secondary nozzles are mounted so as to be mobile about a transverse axis so as to be moved by actuators controlled by a processing unit that implements a method for controlling the secondary nozzles, thus providing automatic control assistance to the passenger.